I have to second this issue – I’ve encountered the same problem and followed the same troubleshooting process as Marian – our site involves 25 popups on a very specific page – I’m going through one by one and targeting them to load only on that specific page ID, but I really need to be able to fix this soon.
It appears that the site is receiving a huge influx of uncachable (POST) admin-ajax requests coming from Popup Maker. These are occurring in multiples on each page load when visiting the sites’ admin dashboard. Since these requests are uncachable, they are utilizing a large number of server resource, since they occur in bulk.
Is there a way we can go about reducing the amount of ajax-admin requests this plugin is producing on the backend?
Thanks in advance for your help here.